aat Acta Astrophys. Tau. Acta Astrophysica Taurica 2712-925X Kiselev Nikolai Nikolaevich, Mosсow, settlement Moskovskii, Tat'yanin Park Str., 12, Moscow, Russia. RU 80 Magnetism and Activity of the Sun - 2022 Conference proceedings Impact of the internal structure on the scattering properties of inhomogeneous particles Petrov Dmitry Crimean Astrophysical Observatory, Nauchny, 298409 23 06 2024 5 2 29 33 16 06 2024 Copyright (c) 2024 Dmitry Petrov 2024 Dmitry Petrov The metadata for this submission is licensed under a Creative Commons Attribution 4.0 International License. Copyright and publishing rights for texts published in Acta Astrophysica Taurica is retained by the authors, with first publication rights granted to the journal.Texts are free to use with proper attribution and link to the licensing (Creative Commons Attribution 4.0 International).

Inhomogeneous particles are widespread in nature. When interpreting observational data on remote sensing of celestial bodies, the relative abundances of various elements are often determined. This paper aims to study the impact of the mutual arrangement of inhomogeneities on the scattering properties of layered particles. Silicate-carbon (silicate covered with a layer of carbon) and carbon-silicate (carbon covered with a layer of silicate) particles were considered. Computer simulation of the scattering properties of layered particles using the shape matrix method showed that the mutual arrangement of layers at the same carbon and silicate abundances noticeably affects both the integral scattering characteristics (scattering factor, absorption factor, single scattering albedo) and the linear polarization degree. A comparison of the simulation results with the results of polarimetric observations of the F-type asteroid (3200) Phaethon showed that the asteroids of this type are highly likely characterized by silicate-carbon particles, which have both a higher degree of linear polarization at the corresponding phase angle and a lower albedo.

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